Resin composition and resin mold

Abstract

A resin composition includes a resin; a radical trapping agent that has at least one of a phenol group, a nitrogen atom and a sulfuric acid group; and a char-forming agent that has a carbonate group.

1 . A resin composition comprising:
 a resin;   a radical trapping agent that has at least one of a phenol group, a nitrogen atom and a sulfuric acid group; and   a char-forming agent that has a carbonate group.   
   
   
       2 . The resin composition according to  claim 1 , wherein
 the radical trapping agent is a compound having a decomposition temperature lower than that of the resin in thermogravimetry in conformity with JIS K7120.   
   
   
       3 . The resin composition according to  claim 1 , wherein
 the radical trapping agent is a compound having at least one of a phenol group, a nitrogen atom and a sulfuric acid group.   
   
   
       4 . The resin composition according to  claim 1 , wherein
 the radical trapping agent is a compound having one or more sulfuric acid groups per one molecule.   
   
   
       5 . The resin composition according to  claim 1 , wherein
 the radical trapping agent is selected from the group consisting of melamine sulfate, guanidine sulfate, barium aminobenzenesulfonate, and aluminum benzimidazolesulfonate   
   
   
       6 . The resin composition according to  claim 1 , wherein
 the radical trapping agent is contained in an mount of from about 0.1 part by mass to about 50 parts by mass based on 100 parts by mass of the resin.   
   
   
       7 . The resin composition according to  claim 1 , wherein
 the char-forming agent is a compound having a residual rate at 600° C. of equal to or higher than that of the resin in thermogravimetry in conformity with JIS K7120.   
   
   
       8 . The resin composition according to  claim 1 , wherein
 the char-forming agent is selected from the group consisting of phenylpolystyrene carbonate, polycarbonate, polyphenylene ether, diphenyl carbonate, and triphenyl dicarbonate.   
   
   
       9 . The resin composition according to  claim 1 , wherein
 the char-forming agent is a compound having a phenylcarbonate group in an amount of about 35 mass % or more based on a total amount of the char-forming agent.   
   
   
       10 . The resin composition according to  claim 1 , wherein
 the char-forming agent is contained in an mount of from about 0.1 part by mass to about 100 parts by mass based on 100 parts by mass of the resin.   
   
   
       11 . The resin composition according to  claim 1 , wherein
 the radical trapping agent is melamine sulfate, and   the char-forming agent is phenylpolystyrene carbonate.   
   
   
       12 . The resin composition according to  claim 1 , wherein
 the resin is a compound having at least one of a styrene group and a phenylcarbonate group.   
   
   
       13 . The resin composition according to  claim 1 , wherein
 the resin is selected from the group consisting of acrylonitrile-butadiene-styrene copolymer (ABS), polycarbonate (PC), polystyrene (PS), acrylonitrile-styrene copolymer (AS), styrenephosphonic acid resin, styreneformalin resin, or styrol resin   
   
   
       14 . A resin mold formed of the resin composition according to  claim 1 .